Choosing the right material is hard enough for the 3D printing hobbyist – who hasn’t chosen a brand of filament that has left them with a useless lump instead of a viable print? It’s maddening, but for certain industrial applications, the wrong material can go far beyond frustrating. The medical industry, in particular, is subject to extremely strict standards when it comes to the materials that can be used for surgical tools or implants, for obvious reasons. Thus, companies like taulman3D, which formulates high-quality filament targeted towards very specific applications, are in high demand.
According to the Missouri company, the medical 3D printing industry has been clamoring for a material that meets ISO 10993 standards for biocompatible medical devices, and taulman3D has now delivered with a new PETG-based filament called guidel!ine. The high-strength, high-temperature material is already registered with the FDA, and users will be provided with plenty of information in sync with the agency’s “Technical Considerations for Additive Manufactured Devices Draft Guidance for Industry and Food and Drug Administration Staff: Section C: Material Controls.”
A device printed with guidel!ne isn’t automatically FDA/CE certified – the certification process is a lot more complicated than that – but it significantly speeds things along to be able to present a part made with an already tested and approved raw material.
“guidel!ne is sold as a raw material modified in form only into 3d printing line and most important, extruded in a manner that keeps contaminates out of the material during the cooling process, where contaminates and bacteria could be embedded in the soft extrusion,” states taulman3D. “In addition, pH and ORP levels are monitored and adjusted to maintain acceptable levels.”
In addition, the company is providing plenty of support in terms of tracking and and verifiying the material once it’s been shipped. Each one-pound spool of the filament, which is available in 2.85 and 1.75 mm diameters, is stamped with a QR code embedded with a “traceability and batch key,” and consumers will be able to register each spool with taulman3D. Each vacuum-sealed spool ships in its own box and is labeled with an identification number, and – like taulman3D’s other materials – the filament is completely clear which allows for easy examination and evaluation of printed parts.
In terms of performance, guidel!ine has excellent thermal properties and is resistant to distortion, allowing the printing of small, finely detailed parts, including watertight hollow tubes, at high temperatures without warpage. It needs only a small amount of retraction and also serves as a good support material for medical grade nylon prints – it has just enough adhesion to provide support and still be easy to remove.
Here are the fine details:
- Tensile strength: 6,850PSI – stronger than taulman3D’s strongest TECH-G material
- Elongation: 5.9, modulus 281,469PSI
- Print temperature: 250°C
- Heat distortion temperature: 70°C
- Softening temperature: 100°C